Effect of plasticizer release on the final properties of blend, hybrid and block copolymer latex films containing hard and soft phases

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings Pub Date : 2024-08-10 DOI:10.1016/j.porgcoat.2024.108730

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Abstract

Waterborne blend, hybrid and block copolymer latexes containing hard and soft polymeric phases in different polymer particles, in the same polymer particles or in the same polymer chains are prepared in order to analyse how the coalescing aids added in order to produce continuous films at room temperature affect their final mechanical properties. The minimum film formation temperature is measured for the three latexes upon addition of Texanol and BDG coalescing aids, and the possibility of producing continuous films at room temperature with different amounts of the coalescing aids is analysed. The plasticizing effect of each coalescing aid is analysed by DSC and by measuring their partition coefficients between the water and the polymeric phases. Finally, the evolution of the mechanical properties of the films plasticized with BDG and dried for different times is related to the evolution of the coalescing aid remaining in the film after those drying periods and to the morphology of each film.

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增塑剂释放对含软硬相的共混胶乳薄膜、混合胶乳薄膜和嵌段共聚胶乳薄膜最终性能的影响

制备了在不同聚合物颗粒、相同聚合物颗粒或相同聚合物链中含有软硬聚合物相的水性共混胶乳、混合胶乳和嵌段共聚胶乳，以分析为在室温下生产连续薄膜而添加的助聚剂对其最终机械性能的影响。测量了添加 Texanol 和 BDG 助聚剂后三种胶乳的最低成膜温度，并分析了使用不同量的助聚剂在室温下生产连续薄膜的可能性。通过 DSC 和测量它们在水和聚合物相之间的分配系数，分析了每种助聚剂的塑化效果。最后，用 BDG 塑化并干燥了不同时间的薄膜的机械性能变化与干燥后残留在薄膜中的助聚剂的变化以及每种薄膜的形态有关。

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来源期刊

Progress in Organic Coatings 工程技术-材料科学：膜

CiteScore

11.40

自引率

15.20%

发文量

577

审稿时长

48 days

期刊介绍： The aim of this international journal is to analyse and publicise the progress and current state of knowledge in the field of organic coatings and related materials. The Editors and the Editorial Board members will solicit both review and research papers from academic and industrial scientists who are actively engaged in research and development or, in the case of review papers, have extensive experience in the subject to be reviewed. Unsolicited manuscripts will be accepted if they meet the journal''s requirements. The journal publishes papers dealing with such subjects as: • Chemical, physical and technological properties of organic coatings and related materials • Problems and methods of preparation, manufacture and application of these materials • Performance, testing and analysis.

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